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lu an kuang qu gou zao re yan hua shu zhi mo ni
Author(s): 
Pages: 36-38,91
Year: Issue:  9
Journal: Coal

Keyword:  构造-热演化镜质体反射率潞安矿区;
Abstract: 含煤盆地的构造演化及热演化过程是决定煤层变质程度以及煤层气生成、聚集、成藏的一个重要因素。通过对含煤盆地的地层地史信息进行恢复,即可依据盆地构造演化及热演化进程对有机质成熟度和烃源岩生烃过程进行研究。文章采用镜质体反射率(Ro )对潞安矿区构造-热演化特征进行恢复。结果表明:矿区含煤地层在早三叠世-早侏罗世时处于最大埋深状态,热流值在三叠纪晚期达到第一个峰值(75~86 mW/m 2);经过一次沉降抬升之后至早白垩纪末期热流值达到第二个峰值(88~96 mW/m 2);古近纪后含煤地层温度稳定,热流值逐渐平稳。
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